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Understanding DDRn SDRAM

So I am basically trying to grasp/confirm my grasp of SDRAM and DDR. So basically I understand that there is going to be some chips each with up to 8 banks (so kinda like 8 chips internally?). For ...
0
votes
1answer
67 views

Choose “safe” section of DDR memory in ZC702 board

I can not fully understand what section of the available external memory is safe to assign for a VDMA on the ZC702 board. I need to dedicate 4MB of memory for the three frames (640*480* 4bytes * 3 ...
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votes
1answer
418 views

Understanding Address Map

Please refer to this image of page 113 of this manual I'm not understanding this table. From what I can tell, I have from 0010_0000 to 3FFF_FFF of DDR memory, which is 1 072 693 247 bytes and ...
1
vote
1answer
925 views

Memory IC width vs depth

Given a need for a single 2G × 32 bit DDR3 memory block, which configuration would be ideal and why? A: Two 2G × 16 bit memory ICs or B: Two 1G × 32 bit memory ICs I think that A ...